Is wpffontcache_v0400.exe part of smart ware or mycloud programs?

The wpffontcache_v0400.exe process is hogging all the memory.

Is it part of any of mycloud softaware?

Can it be deleted?

It may be being used by one of the WD Desktop Apps.

Google finds a lot of discussions about what it does, whether it is really needed, and how it can be tamed, and potential reasons why it might be causing 100% CPU.